n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 10 |
3 | 28 |
4 | 80 |
5 | 211 |
6 | 569 |
7 | 1455 |
8 | 3806 |
9 | 9564 |
10 | 24565 |
11 | 61080 |
12 | 155041 |
13 | 382920 |
14 | 964163 |
15 | 2370712 |
16 | 5934974 |
17 | 14548685 |
18 | 36266755 |
19 | 88711181 |
20 | 220415107 |
21 | 538305745 |
22 | 1334040167 |
23 | 3254193849 |
24 | 8047710361 |
25 | 19613210297 |
26 | 48419611161 |
[1,3,10,28,80,211,569,1455,3806,9564,24565,61080, 155041,382920,964163,2370712,5934974,14548685, 36266755,88711181,220415107,538305745,1334040167, 3254193849,8047710361,19613210297,48419611161] |